The experiment pushed the search for water several meters below the lunar surfacea much deeper than had been possible before.

VOA: special.2009.12.30

The Kaesong complex is an experiment in North-South cooperation which opened for business in 2004 just inside North Korea's border with the South.

VOA: standard.2009.06.05

He says the experiment will pave the way for a real Mars expedition later this century.

VOA: standard.2010.06.02

"Well,if you are a young person and produce the best experiment or design,the best hardware or software, you ought to be recognized for the achievement,too."

VOA: standard.2009.11.24